Mathematics, 26.07.2019 08:00 jediDR

The desired percentage of sio2 in a certain type of aluminous cement is 5.5. to test whether the true average percentage is 5.5 for a particular production facility, 16 independently obtained samples are analyzed. suppose that the percentage of sio2 in a sample is normally distributed with σ = 0.32 and that x = 5.21. (use α = 0.05.)

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The desired percentage of sio2 in a certain type of aluminous cement is 5.5. to test whether the tru...